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If its positive the first time, you pick a higher percentage as the project is clearly giving you more than the initial % you selected.
I usually start @ 5%, and work from there, either going up to 10% if my first answer in positive, or down to 2% if negative.
Even if you get two positives which I sometimes get, it should still be fine when using the formula. Just make sure you are entering the numbers in the correct order in your calculator.
Hope that helps.
This is a relief! I am retaking F9 and starting now.
I believe the key is more question practice – especially the MCQ
